Chrome/Firefox/Safari (User Script): If you're like me, you probably avoid most YouTube links because you don't know what's on the other end, and you don't want to waste time finding out. User script YouTube Link Title saves you from NSFW videos, rickrolls, and things that just aren't worth your time by warning you what's on the other side.

YouTube Link Title does a few things. First and foremost, it replaces every YouTube link you see (such as www.youtube.com/watch?v=KT--CsBh5TM with the actual title of the video (such as Know Your Meme: The Rickroll). If the link text isn't the YouTube URL, you can see the video title and a thumbnail by mousing over the link. It'll even cross out links for videos that are blocked in your country, so you don't have to waste time clicking on them. And, lastly, clicking on that link will open it up on the same page, embedding it instead of making you load YouTube in a new tab. Of course, if you prefer to load YouTube in a new tab, you can always Ctrl+click or Middle click to do so.

YouTube Link Title is a user script that works in Firefox with Greasemonkey, Chrome, and Safari with NinjaKit.